Heat interchanger



March 18, 1924;

G. B. LANTZ HEAT INTERCHANGER Filed July 21 1920 INVENTOR. 6? 5. Lfl/VTZBY I W ATTORNEY Patented Mar. 18, 1924.

UNITED STATES PATENT OFFICE.

GROVER B. LANTZ, 0F COLTON, CALIFORNIA.

HEAT INTERCHAN'G-EB.

Application filed July 21, 1920. Serial No. 397,930.

To all whom it may concern:

Be it known that I, GRovER B. LANTZ, a citizen of the United States,residing at Colton, in the county ofSan Bernardino and State ofCalifornia, have invented certain new and useful Improvements in Heatlnterchangers, of which the following is a specification.

to, a point of discharge, and still another object is to provide inapparatus of the i above described character, means to preventincrustation of the surfaces with which the material comes in contactwhile it is being cooled or heated. o

With the above and other objects in view, all of which will fully-appearin the course of the following description, my invention consists of theconstruction, arrangement and combination of parts shown in theaccompanying drawings in the various views of which like parts aresimilarly designated, and in which Figure 1 represents a longitudinalsection through my improved heat interchanger; v

Figure 2, an enlarged longitudinal section of one of the end portions ofthe same;

is supported in a substantially horizontal position upon suitablyconstructed piers 0r pedestals 3.

The ends of the tubular vessel are closed by heads 4 provided withstufling boxes 5 for the passage of axially alined gudgeons 6 and 7 atthe ends of a rotary container 8 of tubular form which extends withinthe Figure 3, a transverse section along the vessel in spaced relationto the inner cir: cumferential surface thereof.

The vessel has adjacent one of its ends an intake opening 9 and at theother end an outlet opening 10 through which the fluid by which thecontents of the container are either cooled or heated, is admitted anddischarged.

The gudgeons of the tubular container are fastened in plugs 12 whichclose the opposite ends thereof and they are supported for the rotationof the container about its longitudinal axis, in pedestal boxes 13erected at opposite ends ofthe vessel in which the container isdisposed.

The gudgeons 7 and 6 are of tubular form to serve as conduits for theingress and egress of material to and from the container and their'endsprojecting beyond the bearings, are connected respectively withrelatively stationary feed and discharge pipes 14 and, 15 through themedium of,

suitable packed unions 16.

A pulley 17 mounted upon one of the two gudgeons provides a medium forthe rotation of the container within the vesselby connection with aconveniently locatedsource'of mechanical energy;

Rods 18' are loosely disposed in the inlet and outlet conduits of thecontainer and the therewith alined feed and discharge pipes to preventincrustation of the interior surfaces of the same by solids contained inthe material under treatment and they are held against longitudinaldisplacementby swiveled links 19 which connect their outer ends withadjacently situated parts of the stationary pipes. v

The container 8 is for the same purpose provided with a number ofloosely disposed objects 20 such as balls, pebbles or rods, which duringrotation of thecontainer have a grinding and scouring'action upon itsinterior surface and thereby prevent the deposit and adhesion ofincrustive matter.

Blades 21 projecting radially from the cylindrical wall of the containerinto the surrounding space'of the cylindrical vessel are adapted toagitate the fluid by which the material under treatment is cooled orheated, for the purpose of maintaining a uniform temperature.

In the operation of the machine'the ma-J terial to be cooled or heatedis fed through the pipe 14 and the conduit"? into the container 8 andduring its passage therethrough from one end to the other is subjectedto the influence of a fluid of difierent temperature Which is introducedinto the vessel 2 through the intake opening 9 thereof.

The two fluids are discharged from the container and the vesselrespectively through the conduit 6 and the outlet opening 10 so thatsubject to a continuous teed thetwo fluids Will flow constantly inopposite directions and by their contiguity interchange theirtemperatures to the desired degree.

The rotary motion of the container sub jects every part of the materialrepeatedly to the heating or cooling influence of the surrounding fluidand to some extent prevents subsidence of solids in the material andsubsequent inc'rustation of the surface to which it settles.

The movements or" the balls or other objects in the container and of therods in the ingress and egress conduits of the same are, however,theprincipal factors in preventing the i'ncrustation of the surfacesWith which the material is in contact, by their abrasive action duringthe revolving motion of the parts of the rotary elem int in which theyare disposed.

The apparatus as hereinbefore described is suitable for either coolingor heating any fluid material, be it a liquid, solid, vapor, gas oracombination of any tWo or more thereof, and the medium by which thematerial is cooled or heated may be a liquid, vapor or gas orcombination of either two or all of these fluids,

The blades on the rotary container er:- tending into the surroundingspace of the vessel agitate the fluid in said space for the purpose ofkeeping it at a uniform tempera ture which especially in the use or" aliquid is essential to maintain the effective influence of the fluidupon the material throughout the length of the container.

By corrugating the cylindrical Wall of the container as shown in Figure5 of the drawings, incrustation thereof may be prevented to aconsiderable extent with or Without the use or balls or" other abrasive"objects, and I desire it understood that other changes in theconstruction of the parts of the apparatus may be resorted to mensesWithout departing from the spirit of my invention defined in ti hereuntoappended claims.

The vessel in which the container has its movement be made in the formof an open trough when the apparatus is used cooling the material by theuse of a liquid, the cross-sectional form of the vessel may be variedfrom that shown in the drawings, and the vessel may be mounted forrotation and connected with a driving element to move simultaneousl Withthe container in either the same or the opposite direction should the iature of either of the two fluids demand a movement of this hind for theoperation the machine at or near its point of ma Illlltllll e'fliciency.

Haring thus described my invention What I claim desire to secure byLetters Patent is:

l. in a heat ini'zerchanger, vessel adapted to receive and discharge acooling or heating fluid, a cylindrical container 1 said vessel havir atits ends its sup pmrtcd for its and abrasive media in said conheatinterchangcr, a vessel adapted to receive and discharge a cooling fluid,a cylindrical container in id vessel having at its ends axiallyalincdinletand outlet-ct rotation and; rods loosely disposed in said toe oftlic character deelongate vessel adapted to redischarge a cooling fiuiuand haw ling be: S at its ends, a tubular con-- in said vesselexteriorly of: its ends, axially alined, hollow, open-ended gudgeons forthe admission and discharge of material, separated by the spa e Withinthe container, and supported in the boxes for rotation of the same,relatively stationary inlet and on let pipes in fluid-tight connectionWith the gudgeons, an abrasive medi by the rotary movement thereofincrustation of its inner s lace, and means for the rotation of thecontainer. In testimony whereof signature.

have affixed my onovrin 1%. Laura.

nits supported for its uni loose the container to prevent for

